# Distance between two aircraft

Geometry Level 2

Two aircraft leave an airfield at the same time. One travels due north at an average speed of $$280$$ $$\frac{km}{hr}$$ and the other due west at an average speed of $$250$$ $$\frac{km}{hr}$$. Calculate their distance apart after 3 hours. Give your answer as km rounded to the nearest whole number.

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